X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=security%2Finode.c;h=0f1a041bf6cb99ea8461756cb576d58536328c66;hb=c04b4e2e77a884014ab4d2538a90281b4b0e3a6f;hp=131a3c49f766444f167f88d19b712ef80ee47a66;hpb=7b6249bba940f57c20cdde793b306ca3831778c7;p=firefly-linux-kernel-4.4.55.git

diff --git a/security/inode.c b/security/inode.c
index 131a3c49f766..0f1a041bf6cb 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -25,11 +25,6 @@
 static struct vfsmount *mount;
 static int mount_count;
 
-static inline int positive(struct dentry *dentry)
-{
-	return dentry->d_inode && !d_unhashed(dentry);
-}
-
 static int fill_super(struct super_block *sb, void *data, int silent)
 {
 	static struct tree_descr files[] = {{""}};
@@ -102,14 +97,14 @@ struct dentry *securityfs_create_file(const char *name, umode_t mode,
 	if (!parent)
 		parent = mount->mnt_root;
 
-	dir = parent->d_inode;
+	dir = d_inode(parent);
 
 	mutex_lock(&dir->i_mutex);
-	dentry = lookup_one_len(name, parent, strlen(name));
+	dentry = lookup_one_len2(name, mount, parent, strlen(name));
 	if (IS_ERR(dentry))
 		goto out;
 
-	if (dentry->d_inode) {
+	if (d_really_is_positive(dentry)) {
 		error = -EEXIST;
 		goto out1;
 	}
@@ -197,37 +192,33 @@ void securityfs_remove(struct dentry *dentry)
 		return;
 
 	parent = dentry->d_parent;
-	if (!parent || !parent->d_inode)
+	if (!parent || d_really_is_negative(parent))
 		return;
 
-	mutex_lock(&parent->d_inode->i_mutex);
-	if (positive(dentry)) {
-		if (dentry->d_inode) {
-			if (d_is_dir(dentry))
-				simple_rmdir(parent->d_inode, dentry);
-			else
-				simple_unlink(parent->d_inode, dentry);
-			dput(dentry);
-		}
+	mutex_lock(&d_inode(parent)->i_mutex);
+	if (simple_positive(dentry)) {
+		if (d_is_dir(dentry))
+			simple_rmdir(d_inode(parent), dentry);
+		else
+			simple_unlink(d_inode(parent), dentry);
+		dput(dentry);
 	}
-	mutex_unlock(&parent->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent)->i_mutex);
 	simple_release_fs(&mount, &mount_count);
 }
 EXPORT_SYMBOL_GPL(securityfs_remove);
 
-static struct kobject *security_kobj;
-
 static int __init securityfs_init(void)
 {
 	int retval;
 
-	security_kobj = kobject_create_and_add("security", kernel_kobj);
-	if (!security_kobj)
-		return -EINVAL;
+	retval = sysfs_create_mount_point(kernel_kobj, "security");
+	if (retval)
+		return retval;
 
 	retval = register_filesystem(&fs_type);
 	if (retval)
-		kobject_put(security_kobj);
+		sysfs_remove_mount_point(kernel_kobj, "security");
 	return retval;
 }